Reference Specimens / Africa / Fabre Minerals

This page provides a selection of the specimens that have passed through the Fabre Minerals website and, due to their quality,
rarity, or significance as specimens from interesting locations, have been preserved as reference specimens in #MVM

Tunisia

Zambia

Rutile (twinned)

MA63L8: Group of Rutile crystals that show perfect cyclic twins on a matrix of Limonite and Quartz. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.
Kinyanfumbe, Mwinilunga District, Northwestern Province Zambia (2007)

Specimen size: 3.1 × 2.3 × 2.6 cm = 1.22” × 0.91” × 1.02”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”

Rutile (twinned)

MB60L8: Group of Rutile crystals, one of them of good size, on a limonite matrix that resembles a conglomerate. The Rutile crystals display a perfect example of the classic cyclic twin, with very bright, striated faces and a deep red color, visible in transparency and reflections under intense light. Although the first locality given on the market was the D.R. of Congo, the correct locality is Zambia, close to the D.R. of Congo border.

Kinyanfumbe is located in Mwinilunga District, Northwestern Province, Zambia, within the northern extension of the Central African Copperbelt. The area is underlain by Proterozoic metamorphic rocks of the Lufubu Group and volcano-sedimentary sequences of the Lufilian Belt, affected by Pan-African tectono-metamorphic processes. Local mineralization, of hydrothermal and metasomatic character, includes Quartz, Feldspar, and Be–Nb-bearing minerals formed in pegmatites and veins related to late-tectonic granitic intrusions.
Kinyanfumbe, Mwinilunga District, Northwestern Province Zambia (2007)

Specimen size: 3.2 × 4.1 × 3.2 cm = 1.26” × 1.61” × 1.26”

Main crystal size: 0.9 × 0.9 cm = 0.35” × 0.35”

Rutile (twinned)

MA61L8: Group of Rutile crystals that show perfect cyclic twins on a matrix formed by Rutile, Limonite and a bit of Quartz. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.
Kinyanfumbe, Mwinilunga District, Northwestern Province Zambia (2007)

Specimen size: 5 × 4 × 2.9 cm = 1.97” × 1.57” × 1.14”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Malachite with Chrysocolla

MX66S3: Centered and fanlike growths of acicular crystals of Malachite with very deep, intense and uniform color, and with scoriaceous growths of very clear green Chrysocolla.
Nkana Mine (Rokana Mine), Kitwe, Kitwe Dstrict, Copperbelt Province Zambia

Specimen size: 11.2 × 9 × 2.6 cm = 4.41” × 3.54” × 1.02”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Libethenite

TV96AL8: Group of very sharp dipyramidal Libethenite crystals with well defined faces and edges, bright and with a deep and uniform green color. On matrix with Chrysocolla.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia

Specimen size: 1.9 × 1.9 × 1.4 cm = 0.75” × 0.75” × 0.55”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”

Former collection of Bob Noble

Libethenite

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TG89L3: The definitive thumbnail. Extremely well defined Libethenite crystals, with marked pseudo-octahedral habit. Very deep green color, excellent luster and on matrix.
This sample was collected by K. J. Reid in November, 1976, and there is a good paper about this deposit on The Mineralogical Record (Vol. 9 n. 6, Nov.-Dec. 1978)
The specimen has been reviewed, photographed and published in the magazine ‘Mineral Up’ on page 26 in number 2008/2
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (11/1976)

Specimen size: 2.1 × 1.6 × 1.4 cm = 0.83” × 0.63” × 0.55”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”

Libethenite

TK37AL8: Group of very sharp dipyramidal Libethenite crystals with well defined faces and edges, shiny and with a very deep green color, almost black.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label, which shows that it was previously in the James (Jim) Minette collection.
This specimen has been published on the Mineralogical Record´s web page, in the ‘What's New’ section, report 57, August 30, 2020 edition, page 5

Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia

Specimen size: 2.3 × 1.6 × 1.3 cm = 0.91” × 0.63” × 0.51”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

Former collection of Bob Noble

Libethenite

EB36AL8: Elongated crystal of Libethenite on matrix, doubly terminated, and very rich in polycrystalline growths. With good luster and a very deep and uniform green color.
The specimen is accompanied by the collector's card, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (06/11/1976)

Specimen size: 3 × 2.4 × 1.1 cm = 1.18” × 0.94” × 0.43”

Main crystal size: 1.1 × 0.5 cm = 0.43” × 0.20”

Former collection of K.J. Reid

Libethenite

TV6AK7: Group of tetrahedral crystals with very well defined faces and edges, lustrous, very deep and uniform green color, on matrix. A Zambian classic that we will send in its original Perky box from the Robert J. Noble collection, which also includes a label indicating that the piece was previously in the Sullivan collection.
Nkana Mine (Rokana Mine), Kitwe, Kitwe Dstrict, Copperbelt Province Zambia

Specimen size: 3.2 × 1.9 × 1.4 cm = 1.26” × 0.75” × 0.55”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

Former collection of Bob Noble

Libethenite with Malachite

EA14AL8: Group of very sharp dipyramidal Libethenite crystals with well defined faces and edges, bright and with an intense and vivid green color. On matrix and with Malachite.
The specimen is accompanied by the collector's card, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (06/11/1976)

Specimen size: 3.4 × 2.4 × 1.9 cm = 1.34” × 0.94” × 0.75”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Former collection of K.J. Reid

Libethenite

EC67AL8: Elongated crystal of Libethenite on matrix, doubly terminated, very rich in polycrystalline growths, good luster and a very deep and uniform green color.
The specimen is accompanied by the collector's card, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
This specimen has been published on the Mineralogical Record´s web page, in the ‘What's New’ section, report 57, August 30, 2020 edition, page 5
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (06/11/1976)

Specimen size: 3.6 × 2.8 × 2.1 cm = 1.42” × 1.10” × 0.83”

Main crystal size: 1.5 × 0.9 cm = 0.59” × 0.35”

Former collection of K.J. Reid

Libethenite

ED67AL8: Polycrystalline growth of Libethenite crystals with very sharp faces and edges, good luster and a very deep and uniform green color. On matrix.
The specimen is accompanied by the collector's card, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (06/11/1976)

Specimen size: 4.1 × 3 × 2.3 cm = 1.61” × 1.18” × 0.91”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Former collection of K.J. Reid

Libethenite

TE99L1: Very sharp, complex and excellent luster Libethenite crystals on matrix. The specimen comes from a one of the most classical Libethenite localities, where nowadays it is quite difficult to find fresh and high quality specimens.
This sample was collected by K. J. Reid in November, 1976, and there is a good paper about this deposit on The Mineralogical Record (Vol. 9 n. 6, Nov.-Dec. 1978)
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (11/1976)

Specimen size: 4.5 × 3.6 × 3 cm = 1.77” × 1.42” × 1.18”

Main crystal size: 1.5 × 1.4 cm = 0.59” × 0.55”

Libethenite

EE86AL8: Polycrystalline growth of Libethenite crystals with very well defined faces and edges, very lustrous and with a very deep and uniform green color. On matrix.
The specimen is accompanied by the collector's card, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province Zambia (06/11/1976)

Specimen size: 6.7 × 5.5 × 3.5 cm = 2.64” × 2.17” × 1.38”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

Former collection of K.J. Reid

Libethenite

MC57S3: Druse of dipyramidal crystals, with very well defined faces and edges and deep and uniform green color, on matrix.
Nchanga Mine, Chingola, Chingola District, Copperbelt Province Zambia

Specimen size: 10.2 × 7.5 × 3.6 cm = 4.02” × 2.95” × 1.42”

Main crystal size: 0.15 × 0.15 cm = 0.06” × 0.06”

Libethenite

Fluorescent light (daylight)

TFA87AO7: Druse, on matrix, of very sharp dipyramidal crystals with well defined faces and edges, with bright luster and a deep and uniform green color.
Nchanga Mine, Chingola, Chingola District, Copperbelt Province Zambia

Specimen size: 11.4 × 8.4 × 6.2 cm = 4.49” × 3.31” × 2.44”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Tarbuttite

TXA66AO0: Group of Tarbuttite crystals with unusually sharp crystal forms, transparent, highly lustrous, colorless, and on a limonite matrix. Its history is fascinating since Bob Noble's label states that its origin was the 1929 Vaux expedition and that the specimen belonged to the Philadelphia Academy collection.
We will send the specimen, from the type locality for the species, in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the aforementioned label.
Kabwe Mine (Broken Hill Mine), Kabwe (Kabwe-Ka Mukuba), Kabwe District, Central Province Zambia (±1929)

Specimen size: 2.8 × 2 × 1.5 cm = 1.10” × 0.79” × 0.59”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

Type locality

Former collection of Bob Noble

Tarbuttite

TA37AL5: Very aerial group of highly profiled Tarbuttite crystals, unusually transparent and sharp and on matrix. We will send the specimen, from the type locality for the species, in its original Perky box from the Robert J. Noble collection, which also contains the label, on which it appears that it was previously in the Jim & Dawn Minette collection.
Kabwe Mine (Broken Hill Mine), Kabwe (Kabwe-Ka Mukuba), Kabwe District, Central Province Zambia

Specimen size: 3.1 × 2 × 2.7 cm = 1.22” × 0.79” × 1.06”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

Type locality

Former collection of Bob Noble

Fluorescent long UV & minor fluorescence short UV

Tarbuttite

EB46AL9: Elongated crystals of Tarbuttite with sharp faces and edges, on a limonite matrix. Translucent, white and covered with small crystals of a second generation of lenticular crystals of the same Tarbuttite, with a color between reddish and creamy due to inclusions.
The specimen, from the type locality for the species, is accompanied by a card from the prospector and collector, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
Kabwe Mine (Broken Hill Mine), Kabwe (Kabwe-Ka Mukuba), Kabwe District, Central Province Zambia (07/1976)

Specimen size: 4 × 3.5 × 1.8 cm = 1.57” × 1.38” × 0.71”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

Type locality

Minor fluorescence short UV

Former collection of K.J. Reid

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Tarbuttite

EB97AL9: Elongated crystals of Tarbuttite with sharp faces and edges, on a limonite matrix. Translucent, white and covered with small crystals of a second generation of lenticular crystals of the same Tarbuttite, with a color between reddish and creamy due to inclusions. The specimen, from the type locality for the species, is accompanied by a card from the prospector and collector, Dr. K.J. Reid, in which the date of the find is handwritten and signed.
Kabwe Mine (Broken Hill Mine), Kabwe (Kabwe-Ka Mukuba), Kabwe District, Central Province Zambia (07/1976)

Specimen size: 5 × 3.8 × 2 cm = 1.97” × 1.50” × 0.79”

Main crystal size: 1.1 × 0.4 cm = 0.43” × 0.16”

Type locality

Minor fluorescence short UV

Former collection of K.J. Reid

Pyromorphite

TY26T3: Aggregate of very acute crystals with slightly curved faces and edges, with clear green color and white areas and on limonite matrix. We note the locality, where the Pyromorphite is a not so common.
The sample is from John Marshall’s collection, whose label and card we’ll send to the buyer.
Kabwe Mine (Broken Hill Mine), Kabwe (Kabwe-Ka Mukuba), Kabwe District, Central Province Zambia

Specimen size: 6.7 × 5.2 × 4.7 cm = 2.64” × 2.05” × 1.85”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

Minor fluorescence long & short UV

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Zimbabwe

Rutile and Hematite pseudomorph after Ilmenite crystals

Very interesting novelty of 2007 Munich Show: trigonal crystals of Ilmenite transformed into an intimate intergrowth of Rutile and Hematite. Microscopic examination shows that Rutile (reddish) occurs as a delicate network of needles which are oriented parallel to the basal sections of the former Ilmenite, while Hematite (black) forms the interstices.
If you want to know more about Rutile and Hematite pseudomorph after Ilmenite please follow this link

Azurite with Dolomite

HM80TQ: Group of very sharp Azurite crystals, with a bright luster and very vivid color and partially covered by small white rhombohedral Dolomite crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.9 × 2 × 2.1 cm = 1.14” × 0.79” × 0.83”

Azurite

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MH88X1: Group of Azurite crystals, one of them clearly dominant and doubly terminated, with very well defined faces and edges. They are translucent and have a very deep color with vivid blue sparkles typical of the first Azurite finds at Tsumeb. It is on a matrix of small stalactitic growths of Malachite that have cores of an undetermined yellowish copper species.
Tsumeb Mine, first oxidation zone, Tsumeb, Otjikoto Region Namibia (±1920-30)

Specimen size: 3 × 2.5 × 2.5 cm = 1.18” × 0.98” × 0.98”

Main crystal size: 2.3 × 1.6 cm = 0.91” × 0.63”

Azurite with Cerussite

EP99AG3: Group of complex Azurite crystals, one of them clearly dominant, with very well defined faces and edges, bright and with a very deep color with vivid reflections and transparencies. A classic from Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (1975)

Specimen size: 3.4 × 3.1 × 1.9 cm = 1.34” × 1.22” × 0.75”

Main crystal size: 2.7 × 1.7 cm = 1.06” × 0.67”

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Azurite

EE46X6: Floater group of crystals that have very well defined faces and edges and well marked parallel growths, an uncommon shape for Tsumeb Azurite. The sample is from the Claus Hedegaard, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 3.9 × 3.7 × 2.7 cm = 1.54” × 1.46” × 1.06”

Main crystal size: 2.2 × 1.2 cm = 0.87” × 0.47”

Former collection of Claus Hedegaard

Azurite

MJ67X1: Single Azurite crystal, practically complete except for the small area in contact with the matrix. Translucent, with a very deep color, very vivid blue sparkles and with the intense luster characteristic of the first finds at Tsumeb, it has grown very aerial on a matrix coated by small crystals of Mimetite.
Tsumeb Mine, first oxidation zone, Tsumeb, Otjikoto Region Namibia (±1920-30)

Specimen size: 4.1 × 2.8 × 1.6 cm = 1.61” × 1.10” × 0.63”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

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Azurite

Front / Photo: Joaquim Callén

Detail / Photo: Joaquim Callén

Recorded under neon light

ELL28CD2: Group on matrix of sharp, translucent, shiny, and intensely colored Azurite crystals.
From a distant past, it represents an era when Tsumeb was the number one mine in the world, and its azurites were highly regarded.
It comes with an autographed label from the Moutet collection, attached to a small cardboard box.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.8 × 4.2 × 1.9 cm = 1.89” × 1.65” × 0.75”

Main crystal size: 1.3 × 0.4 cm = 0.51” × 0.16”

Former collection of Moutet (Marseille)

Azurite with Bayldonite and Malachite

MD16X1: Single Azurite crystal on a matrix with small globular growths of Bayldonite. The crystal is translucent, has a very deep color and the vivid blue sparkles characteristic of the first Azurite finds at Tsumeb. The termination is partially and superficially replaced by Malachite.
Tsumeb Mine, first oxidation zone, Tsumeb, Otjikoto Region Namibia (±1920-30)

Specimen size: 5 × 4.9 × 3.8 cm = 1.97” × 1.93” × 1.50”

Main crystal size: 4 × 3 cm = 1.57” × 1.18”

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Azurite

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TR86T2: Floater aggregate of Azurite crystals, so atypical for the Tsumeb samples because of the precise and very well documented information about where it was mined. The crystals are translucent, transparent on the edges, and have very well defined faces and edges and a vivid blue color, very uniform.
Tsumeb Mine, 5.1 sublevel, West 4 stope, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.6 × 4.4 × 3.9 cm = 1.81” × 1.73” × 1.54”

Azurite

TR13AJ0: Flattened crystal with a curious asymmetric lateral growth, with a very sharp edge at the left and very well defined polycrystalline growths on the right. It is translucent, very bright and has very vivid transparences and color reflections.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.9 × 2.1 × 1 cm = 1.14” × 0.83” × 0.39”

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Azurite with Malachite

TC37AJ0: Very aerial group of sharp crystals that are translucent and bright and have very vivid transparences and color reflections. Partially coated by Malachite.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.8 × 3.6 × 1.2 cm = 1.89” × 1.42” × 0.47”

Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”

Azurite with Malachite, Tennantite, Cuprite and Calcite

AF96AM1: Apart from the quality of the Azurite crystals, very sharp, well defined, and some of them doubly terminated, translucent and shiny, along with the pseudomorphing Malachite, the specimen exhibits an interestly rich and complex paragenesis, with tetrahedral crystals of Tennantite, Cuprite and Calcite. We will send the buyer a copy of the Tennantite analysis.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 8 × 6 × 4 cm = 3.15” × 2.36” × 1.57”

Main crystal size: 2 × 0.7 cm = 0.79” × 0.28”

Azurite with Malachite

LD94F3: A real classic, formed by a group of a large number of prismatic, brilliant, strongly colored crystals, some of which are doubly terminated. The added Malachite, in some cases forming pseudomorphs of the Azurite, increases the esthetics.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 10 × 6 × 3 cm = 3.94” × 2.36” × 1.18”

Main crystal size: 2.2 × 0.4 cm = 0.87” × 0.16”

Azurite

Fluorescent light (daylight)

TTM49AP2: Druse of very sharp and lustrous Azurite crystals with an acute prismatic shape, translucent, and on matrix.
A good Tsumeb classic.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 10.9 × 6.3 × 4.2 cm = 4.29” × 2.48” × 1.65”

Main crystal size: 0.9 × 0.2 cm = 0.35” × 0.08”

Front / Photo: Joaquim Callén

Detail / Photo: Joaquim Callén

Azurite

MJ63S3: Groups of flattened crystals on matrix, with very well defined faces and edges, a very intense luster and a very deep blue color with intense transparency under a strong light.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 11.8 × 7.8 × 4.3 cm = 4.65” × 3.07” × 1.69”

Main crystal size: 2.2 × 1.4 cm = 0.87” × 0.55”

Cobaltoan Smithsonite

TR96AJ8: Very aerial druse of Smithsonite crystals formed by a dominant flattened rhombohedron with a thick lenticular shape. They are translucent, bright and with an excellent very deep pink color, typical for the cobaltoan variety. An excellent classic from Tsumeb, of great quality.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.7 × 6.8 × 4.2 cm = 3.03” × 2.68” × 1.65”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”

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Malachite with Adamite (variety cuprian)

TK11AK8: Spherical aggregates of Malachite that have grown on a surface of sharp crystals of Adamite (copper-bearing variety) on matrix, with small Quartz crystals.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains a label stating that the specimen was previously in the Sullivan collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 3 × 2.3 × 1.2 cm = 1.18” × 0.91” × 0.47”

Former collection of Bob Noble

Malachite after Azurite and Azurite

TL48AJ4: Parallel growth, on matrix, of very sharp Malachite (after Azurite) crystals. They have a silky luster and as an added feature there are small, very bright Azurite crystals. A classic from Tsumeb, very esthetic, that is from the Lee Hogg collection whose label we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.1 × 2.5 × 2.1 cm = 1.61” × 0.98” × 0.83”

Main crystal size: 3.4 × 2 cm = 1.34” × 0.79”

Former collection of Lee Hogg

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Malachite after Azurite

TB88D7: What form! Just as esthetic as the photo suggests, this is a floater which comes from a highly respected private collection. You can really see the good taste of the former owner: a real beauty!
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.5 × 4.8 × 2.8 cm = 2.17” × 1.89” × 1.10”

Main crystal size: 3 × 1.3 cm = 1.18” × 0.51”

Malachite with Calcite

MD99AL7: Groups of acicular crystals of primary Malachite with a fibrous appearance and a silky luster, very vivid, and with color shade changes from lighter to darker green depending on the area. On matrix, with complex Calcite crystals in which scalenohedron forms predominate. An excellent Namibian classic.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.6 × 4.2 × 2.6 cm = 2.20” × 1.65” × 1.02”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

Front / Photo: Joaquim Callén

Side / Photo: Joaquim Callén

Detail / Photo: Joaquim Callén

Malachite after Cuprite with Calcite

TR73AJ3: Groups of Malachite crystals (after octahedral Cuprite), coated by a late phase of Malachite microcrystals. They are on a Calcite matrix. Pseudomorphs of Malachite after Cuprite are very uncommon at Tsumeb, and even more so with such large crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6.1 × 5.7 × 3.7 cm = 2.40” × 2.24” × 1.46”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

Calcite fluorescent short UV

Malachite after Azurite

TF48Z9: Aggregate of flattened Malachite crystals, pseudomorphous after Azurite, with parallel growths and a silky surface. In some areas the replacement has not been complete and the primary azurite is preserved. A classic from Tsumeb that is with a Jack Crowley collection record card that we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.1 × 5.8 × 2.1 cm = 2.80” × 2.28” × 0.83”

Main crystal size: 6.1 × 1.2 cm = 2.40” × 0.47”

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Malachite after Azurite

MC51AK7: Sharp group of pseudomorphic Malachite after doubly terminated Azurite crystals, one of them clearly dominant, with very marked polycrystalline growths.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 8.8 × 4.7 × 2.9 cm = 3.46” × 1.85” × 1.14”

Main crystal size: 8.2 × 2.1 cm = 3.23” × 0.83”

Malachite after Azurite with Quartz and Cerussite

Fluorescent light (daylight)

TM93AK7: Malachite pseudomorphic after a group of Azurite crystals, one of them clearly dominant, large, and doubly terminated, with Cerussite, on matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 10.2 × 7.2 × 3.7 cm = 4.02” × 2.83” × 1.46”

Main crystal size: 9.8 × 4.2 cm = 3.86” × 1.65”

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Mottramite with Calcite

TB14AN1: Groups of stalagmitic growths of Mottramite with a light and uniform green color on a matrix of scalenohedral Calcite crystals.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label, which shows that it was previously in the Sullivan collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.6 × 2.4 × 1.9 cm = 1.02” × 0.94” × 0.75”

Former collection of Bob Noble

Duftite with Calcite

NP11W1: Very dense botryoidal growth with a deep olive green color that contrasts with the matrix of white Calcite. The sample has been analyzed and we'll send a copy of the analysis to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 9 × 4.5 ×4.2 cm = 3.54” × 1.77” × 1.65”

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Calcite with Duftite

NB870D1: A funny Calcite with its corners partially covered by intensely green Duftite. Original and esthetic. Perfect specimen, especially for a collector searching for something different, but not ugly!
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 17 × 10.5 × 6 cm = 6.69” × 4.13” × 2.36”

Calcite extremely fluorescent long & short UV

Aragonite (variety tarnowitzite) on Calcite

MF78I0: The crystal is a typical pseudohexagonal twin and it is formed by a short prism and the pseudopyramidal termination. It is esthetically grown on a matrix covered by concretions of Calcite contrasting with white Tarnowitzite, a lead-rich variety, not very common, of Aragonite.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.5 × 4.5 × 3.8 cm = 1.77” × 1.77” × 1.50”

Main crystal size: 2.5 × 2.3 cm = 0.98” × 0.91”

Fluorescent long & short UV

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Aragonite (variety tarnowitzite) on Calcite. Top

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Dolomite

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Fluorescent light (daylight)

TB90AL4: Curious botryoidal Dolomite, uncommon in this locality, with smooth and silk-shiny surfaces and a soft pink color. The specimen has been analyzed and we will send the buyer a copy of the analysis.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 21.2 × 11.9 × 8 cm = 8.35” × 4.69” × 3.15”

Main crystal size: 2.7 × 1.8 cm = 1.06” × 0.71”

Smithsonite

TKA14AN4: Group of Smithsonite crystals, one of them clearly dominant and of considerable size for the locality, with very sharp rhombohedron forms, translucent, with bright luster and a pink color, on a Galena matrix.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains a label stating that it was previously in the Sullivan collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.6 × 2 × 2.4 cm = 1.02” × 0.79” × 0.94”

Main crystal size: 2 × 1.4 cm = 0.79” × 0.55”

Former collection of Bob Noble

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Smithsonite

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TR98AL3: Aggregate of rhombohedral Smithsonite crystals with lenticular habit that form very marked uniaxial growths. The crystals, translucent and bright, have a yellowish-white color.
The sample has been analyzed and comes from the Rock H. Currier collection (No. 3399) whose label we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.1 × 2.8 × 3.2 cm = 1.61” × 1.10” × 1.26”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

Minor fluorescence long & short UV

Former collection of Rock Currier

Smithsonite

TP29T1: Greenish-yellow stalactitic growth of silky luster, whose nucleus is filled by an unidentified white mineral. On the tip of the piece there is a small circular area, smooth, completely natural.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.5 × 1.4 × 1.2 cm = 1.77” × 0.55” × 0.47”

Smithsonite with Cerussite

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Detail / Photo: Joaquim Callén

Fluorescent light (daylight)

BXL93AO6: Aggregate of Smithsonite crystals, on matrix, formed by a very short prism with rhombohedral terminations, transparent, with good luster and a uniform green color.
The specimen comes from an important European collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 11.4 × 8.3 × 4.3 cm = 4.49” × 3.27” × 1.69”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

Smithsonite (variety Co-bearing smithsonite)

TLB66AO1: Group on matrix of rhombohedral Smithsonite crystals, two of them clearly dominant, very sharp, between transparent and translucent, with very bright luster and an intense and uniform mauve color (cobalt-bearing variety)
We will send the buyer the specimen in its original perky box from the Robert J. (Bob) Noble collection, which also contains the label, stating that it was previously in the Sullivan collection.

Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.7 × 2.3 × 1.5 cm = 1.06” × 0.91” × 0.59”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Former collection of Bob Noble

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Smithsonite (variety Co-bearing smithsonite)

TMG87AN5: Druse of rhombohedral Smithsonite crystals (variety Co-bearing smithsonite) with very well defined faces and edges, translucent, with good luster and an intense pink to mauve color.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label stating that it was previously in the Sullivan collection.

Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.9 × 2 × 1.8 cm = 1.14” × 0.79” × 0.71”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

Former collection of Bob Noble

Smithsonite (variety cobaltoan)

EV54AC8: Aggregate, on matrix, of very well defined rhombohedral Smithsonite crystals. They are considerably large for the species and are translucent, bright and have an intense pink color.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.8 × 3.4 × 4.8 cm = 1.89” × 1.34” × 1.89”

Main crystal size: 1.3 × 1.2 cm = 0.51” × 0.47”

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Smithsonite (variety Co-bearing smithsonite)

NB37AK7: Druse of sharp rhombohedral Smithsonite crystals, with well defined faces and slightly curved edges, translucent, lustrous, bright pink with mauve tones, on matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.8 × 4.7 × 4.1 cm = 1.89” × 1.85” × 1.61”

Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”

Smithsonite (variety Co-bearing smithsonite)

Fluorescent light (daylight)

TXM52AO0: Druse on matrix of profiled rhombohedral Smithsonite crystals (Co-bearing variety), with very well defined faces and slightly curved edges, translucent, very lustrous and with an intense pink color with violet tones.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.7 × 4.2 × 2.4 cm = 3.03” × 1.65” × 0.94”

Main crystal size: 1 × 0.5 cm = 0.39” × 0.20”

Smithsonite (variety Co-bearing smithsonite)

Front	Detail / Photo: Joaquim Callén

Fluorescent light (daylight)

MR87AM7: Group of rhombohedral Smithsonite crystals with slight curvatures on the faces and edges, translucent, with good luster and a clear pink color. Some of them are of considerable size for the locality. An excellent Tsumeb classic, of unusual size and quality.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 8.8 × 7.3 × 4.4 cm = 3.46” × 2.87” × 1.73”

Main crystal size: 1.9 × 1.5 cm = 0.75” × 0.59”

Smithsonite (variety Co-bearing smithsonite)

Fluorescent light (daylight)

TFB48AN9: Druse of small rhombohedral Smithsonite crystals that are very sharp, lustrous, and have a reddish color that is quite rare for Tsumeb specimens.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 8.9 × 5.6 × 4.1 cm = 3.50” × 2.20” × 1.61”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

Smithsonite (variety cuprian)

TJ9B6: Just look at the color! Are you looking for a colorful specimen from a classic locality, which is also a little bit different as other ones? This could be it. Yes, the crystal size are not enormous, but look at that color!
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6 × 5.7 cm = 2.36” × 2.24”

Smithsonite (variety Cd-rich smithsonite)

TP50AH6: Druse of Smithsonite crystals on matrix. They have the dominant form of a rhombohedron, with very well defined faces and edges and a soft orange color due to the presence of cadmium. This cadmian Smithsonite variety is surely the rarest found at Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.3 × 3.9 × 3 cm = 2.09” × 1.54” × 1.18”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Smithsonite (variety cadmium)

EG82: Cadmium-rich Smithsonite, displaying very well with its hook appearance and its delicate orange color, due to the presence of Cadmium. An uncommon find in Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.4 × 4.3 × 4.6 cm = 2.13” × 1.69” × 1.81”

Main crystal size: Tsumeb cm = 0.00”

Smithsonite (variety cadmium)

TX92AJ3: Aggregate on a Galena matrix of rhombohedral crystals with very well defined faces and edges and slight curvatures, with neat and very well marked geometrical zoning. They are very bright with a very intense yellow color, slightly orange. The sample is the cadmium rich variety, the rarest by far.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.2 × 6 × 2 cm = 2.83” × 2.36” × 0.79”

Main crystal size: 1.3 × 1 cm = 0.51” × 0.39”

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Dioptase

TLR46AN4: Doubly terminated crystals of Dioptase, one of them clearly dominant, between transparent and translucent, with bright luster and an intense color, on matrix, with white rhombohedral Calcite crystals.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains a label stating that it was previously in the Sullivan collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.7 × 2.4 × 1.4 cm = 1.06” × 0.94” × 0.55”

Main crystal size: 1.1 × 0.7 cm = 0.43” × 0.28”

Former collection of Bob Noble

Dioptase with Calcite

VP96Y5: Isolated doubly terminated Dioptase crystals on a matrix of small white rhombohedral Calcite crystals. The Dioptase crystals are very sharp, transparent and bright.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (±1972)

Specimen size: 4.4 × 3.5 × 2.3 cm = 1.73” × 1.38” × 0.91”

Main crystal size: 0.9 × 0.4 cm = 0.35” × 0.16”

Former collection of A. Mayor

Calcite fluorescent short UV

Dioptase

NV27AM4: Druse on matrix of Dioptase crystals with dominant prism faces and an acute rhombohedron. With very well defined faces and edges, bright luster, and a very dense color.
The specimen comes from the Pedro Hernández collection (number D-1)
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.5 × 4.2 × 3.6 cm = 2.17” × 1.65” × 1.42”

Main crystal size: 1.1 × 0.9 cm = 0.43” × 0.35”

Former collection of Pedro Hernández

Dioptase with Calcite

MY27T8: Doubly terminated crystal, transparent and with excellent color and luster, very intense, implanted on a matrix coated by small crystals of Calcite.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.5 × 3.5 × 4 cm = 2.17” × 1.38” × 1.57”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

Dioptase with Calcite

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TP16H7: A very fine specimen, elegant and original. Crystals are doubly terminated, have excellent color and luster, and they are formed of the prism and the acute rhombohedron on terminations. They cover a stalactitic growth of Calcite that gives a very aerial shape to the sample.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6 × 3.2 × 2.3 cm = 2.36” × 1.26” × 0.91”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

Calcite fluorescent long & short UV

Dioptase on Dolomite and with Cerussite

Fluorescent light (daylight)

BTR94AO6: Very sharp Dioptase crystals, large for the locality, some of them doubly terminated, translucent, very lustrous and on matrix, with white rhombohedral Dolomite crystals which are also covered by small Dioptase crystals and with a curious Cerussite crystal from which it is difficult to know if it is broken or recrystallized since all of it has a dissolution-like appearance.
This specimen is of great quality and comes from an important European collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 10.5 × 5.2 × 5.7 cm = 4.13” × 2.05” × 2.24”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”

Front / Photo: Joaquim Callén

Detail / Photo: Joaquim Callén

Mimetite

TL26AL4: Polycrystalline growths of Mimetite, on matrix, with the forms of the prism and an acute pyramidal termination, translucent, very shiny and yellow color with orange tones.
A very typical Tsumeb specimen that we will deliver in its original Perky box from the Robert J. Noble collection, which also contains the label, which states that it came from the Sullivan collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.2 × 1.6 × 1.1 cm = 0.87” × 0.63” × 0.43”

Former collection of Bob Noble

Mimetite

LR86AK7: Very elongated crystals of Mimetite, with excellent terminations, transparent, lustrous, intense yellow, on matrix.
This piece is from the collection of Philippe Morelon (No. 1100) whose label we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 3 × 2.2 × 1.4 cm = 1.18” × 0.87” × 0.55”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

Minor fluorescence long & short UV

Former collection of Philippe Morelon

Mimetite with Galena

EL96AC5: Aggregate of crystals with very well defined forms of the prism and dipyramid. The larger ones have a considerable length; they are very bright and have a small Galena matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 3.7 × 3.6 × 2.8 cm = 1.46” × 1.42” × 1.10”

Main crystal size: 3.2 × 1.4 cm = 1.26” × 0.55”

Mimetite on Smithsonite

EX97H1: Crystals, forming divergent sprays, have very well defined prism and pyramid, free of curvatures and deformations. They are transparent and have a vivid yellow color outstanding on the white Smithsonite matrix. The sample has a high quality and is from Martin Zinn collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.8 × 3.2 × 2.5 cm = 1.89” × 1.26” × 0.98”

Main crystal size: 0.6 × 0.2 cm = 0.24” × 0.08”

Mimetite with Dolomite

EA68T6: Groups of very acute dipyramidal crystals with very well defined faces and edges and in a Dolomite matrix. An excellent sample, even considering that some of the terminations have broken tips.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6.1 × 3.6 × 3.6 cm = 2.40” × 1.42” × 1.42”

Main crystal size: 1.2 × 0.2 cm = 0.47” × 0.08”

Fluorescence on the matrix (short UV)

Mimetite

EC64AK7: Polycrystalline growths of sharp Mimetite crystals with excellent pyramidal terminations and slightly curved faces and edges, translucent and with good luster, intense and uniform orange-yellow color, on limonite matrix. A Tsumeb classic of great quality.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.3 × 5.7 × 4.4 cm = 2.87” × 2.24” × 1.73”

Main crystal size: 1.3 × 0.6 cm = 0.51” × 0.24”

Minor fluorescence long & short UV

Mimetite with Mimetite with inclusions of Arsendescloizite

Recorded under neon light	Recorded under neon light
Detail Mimetite with inclusions / Photo: Dr. César Menor-Salván	Detail Mimetite with inclusions / Photo: Dr. César Menor-Salván

MBX16CD6: Very special specimen. Three generations of Mimetite coexist, with three different morphologies. Colorless and zoned Mimetite crystals were deposited on the matrix first, followed by another generation of Mimetite crystals with inclusions of Arsendescloizite that give it the showy greenish coloration that can be seen in a good part of the specimen, and finally the largest and best developed more classic Mimetite crystals, yellow in color, and with a crown of crisscrossing crystals at the top of the piece.
The specimen has been analyzed due to its complexity, as is often the case with specimens from Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.3 × 5.8 × 3.7 cm = 2.87” × 2.28” × 1.46”

Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”

Analyzed

Type locality Arsendescloizite

Mimetite with Duftite and Calcite

ELM92ASN3: Groups of Mimetite crystals on matrix, with tapered shapes and sharp terminations. They are arranged in a star-like formation, bright and more translucent at the terminations. Small greenish-toned Duftite crystals and others crystals of Calcite accompany the specimen, which comes from the mega-classic Tsumeb deposit.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.6 × 5.7 × 2.9 cm = 2.99” × 2.24” × 1.14”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”

Photos: Pere Alonso

Mimetite with Dolomite

Fluorescent light (daylight)

BBF49AO8: Groups of Mimetite crystals with sharp crystal forms of the prism and dipyramid, with parallel growths, translucent, pale yellow, on a Dolomite matrix.
The specimen comes from the collection of H. Eichenauer (Germany)
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.8 × 6 × 2.9 cm = 3.07” × 2.36” × 1.14”

Main crystal size: 1.1 × 0.6 cm = 0.43” × 0.24”

Minor fluorescence long UV

Former collection of H. Eichenauer

Mimetite with Cerussite, Malachite and Calcite

HR67AM2: Group of small Mimetite crystals formed by prism faces and flattened pyramidal terminations. Transparent, with very good luster and an intense and uniform lemon-yellow color. On matrix, with Calcite, Malachite and translucent and shiny twins of Cerussite.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.8 × 6.2 × 3.7 cm = 3.07” × 2.44” × 1.46”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

Minor fluorescence long & short UV

Mimetite with Cerussite, Malachite and Calcite.

Mimetite with Willemite

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NF49AN0: Tapered Mimetite crystals, some of them doubly terminated, translucent, with good luster and a bright yellow color, covering a layer of bluish globular Willemite growths on matrix.
A Tsumeb classic, although with a different association than usual there. It comes from the Ignacio Gaspar Sintes collection (number MIT-4), whose catalogue entry we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 9 × 4 × 4 cm = 3.54” × 1.57” × 1.57”

Main crystal size: 0.4 × 0.1 cm = 0.16” × 0.04”

Former collection of Ignacio Gaspar

Willemite fluorescent short UV

Mimetite

EA28X5: Polycrystalline “bundled” growths of crystals with acute pyramidal micro-terminations. They are bright, have a clear yellow color and are on matrix.
The sample is from the collection of Claus Hedegaard, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 9 × 5.5 × 5 cm = 3.54” × 2.17” × 1.97”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

Former collection of Claus Hedegaard

Mimetite with Smithsonite

EA97AM6: Elongated dipyramidal crystals of Mimetite, some of them doubly terminated, transparent, very lustrous, with an intense lemon-yellow color, on matrix, with rhombohedral Smithsonite crystals. The Smithsonite has been analyzed, we will send a copy of the analysis to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 11.1 × 8.2 × 6.7 cm = 4.37” × 3.23” × 2.64”

Main crystal size: 1.4 × 0.2 cm = 0.55” × 0.08”

Former collection of Pedro Hernández

Minor fluorescence long & short UV

Twinned Cerussite

T92BE6: Spray of Cerussite crystals, a floater, and they have the typical criss-cross form of Cerussite from Tsumeb. Both the transparency and brilliance are good: so another good Cerussite twin from Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4 × 3.7 × 2.6 cm = 1.57” × 1.46” × 1.02”

Main crystal size: 2.1 × 1.8 cm = 0.83” × 0.71”

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Side

Twinned Cerussite

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Side

Fluorescent light (daylight)

NM93AK4: Floating group of Cerussite crystals that form multiple twins with the classic lattice-like shape. The crystals are between transparent and translucent, very bright and with shades between colorless and a deeper smoky. A Tsumeb classic of great quality.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7 × 4.3 × 4 cm = 2.76” × 1.69” × 1.57”

Main crystal size: 4.6 × 3.6 cm = 1.81” × 1.42”

Cerussite

TAV86AO3: Arrow-like interpenetration twin of two Cerussite crystals with a very flattened habit. A transparent colorless floater, very lustrous.
We will send the specimen to the buyer in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label, which states that it was previously in the Sullivan collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 1.9 × 1.6 × 0.4 cm = 0.75” × 0.63” × 0.16”

Former collection of Bob Noble

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Side

Cerussite

TXF26AO1: Single crystal of Cerussite, very sharp and with unusually sharp terminations. Transparent, very lustrous and colorless.
We will send the buyer the specimen in its original perky box from the Robert J. (Bob) Noble collection, which also contains the label.

Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.2 × 1 × 0.7 cm = 0.87” × 0.39” × 0.28”

Minor fluorescence short UV

Former collection of Bob Noble

Cerussite

EH28V9: Group of doubly terminated crystals forming a multiple cyclic twin. The crystals are completely clear and extraordinarily bright.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.5 × 3.3 × 3 cm = 1.77” × 1.30” × 1.18”

Main crystal size: 2.8 × 1.6 cm = 1.10” × 0.63”

Minor fluorescence short UV

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Side

Cerussite with Calcite

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Side

EG11Z1: Very aerial growth of cyclic twins of very Sharp crystals with very well defined faces and edges, translucent, bright and on matrix. A very good classic.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.5 × 4.5 × 4.9 cm = 1.77” × 1.77” × 1.93”

Fluorescent short UV

Cerussite

Fluorescent light (daylight)

MD89AI8: Group of extraordinarily sharp Cerussite crystals on matrix. They are flattened, twinned, colorless, transparent and very bright. Just perfect.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5 × 4 × 3.7 cm = 1.97” × 1.57” × 1.46”

Main crystal size: 2.5 × 1.5 cm = 0.98” × 0.59”

Fluorescent short UV

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Cerussite with Duftite and Gartrellite

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Side

ED13R3: An excellent growth of multiple twins of thin translucent crystals (so called “snowflake”), very bright and sharp. The group is complete, with no damage, and it is on a matrix of green Duftite with yellow Gartrellite. A great (and beautiful) piece.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.4 × 3.5 × 3.8 cm = 2.13” × 1.38” × 1.50”

Main crystal size: 3.2 × 0.3 cm = 1.26” × 0.12”

Fluorescence short UV & minor fluorescence long UV

Cerussite with Calcite

EE61W4: Very bright and transparent twinned crystals, with smoky shades and nice inner "rainbow" reflections and small white Calcite crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.8 × 4 × 4.1 cm = 2.28” × 1.57” × 1.61”

Cerussite

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Rear

EC61V9: Very aerial, transparent and bright, twinned crystal. It is implanted on a Quartz matrix rich in small clear green crystals of Smithsonite.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.8 × 4 × 4.3 cm = 2.28” × 1.57” × 1.69”

Main crystal size: 4 × 2.8 cm = 1.57” × 1.10”

Minor fluorescence short UV

Cerussite with Duftite

Fluorescent light (daylight)

ENX98AP2: Cyclic twins of very sharp, transparent and lustrous smoky-colored Cerussite crystals, on matrix, with pale green Duftite microcrystal coatings.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6 × 4.1 × 3.3 cm = 2.36” × 1.61” × 1.30”

Main crystal size: 2.4 × 1.5 cm = 0.94” × 0.59”

Cerussite with Anglesite

MA47H1: White microcrystals of Cerussite are covering tabular crystals of Anglesite. We suspected that the white coverage was Hydrocerussite, so we analyzed it and the results confirmed it as Cerussite. A curiosity from Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 8 × 7.8 × 5 cm = 3.15” × 3.07” × 1.97”

Main crystal size: 2.8 × 2 cm = 1.10” × 0.79”

Fluorescent long & short UV

Hydrocerussite

T59NY: An extraordinary large crystal of Cerussite which stands out well from the matrix and completely covered with Hydrocerussite. Very esthetic, a landmark specimen.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (1978)

Specimen size: 6 × 5 cm = 2.36” × 1.97”

Wulfenite with Dioptase and Calcite

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TC87AE8: Very well defined Wulfenite crystals, bright, translucent yellow and partially coated by stubby Dioptase crystals and on a matrix of rhombohedral Calcite crystals. Unusual.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.6 × 2.1 × 3.1 cm = 1.02” × 0.83” × 1.22”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

Wulfenite

TK50V9: Aggregate of tabular crystals very rich in infrequent crystalline forms. Their color is between yellow and orange; they are bright, between translucent and transparent and have a considerable size for the locality. Although the crystals could appear damaged, they are complete, as the 3D version of the image we offer shows.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.7 × 4.6 × 2.9 cm = 1.85” × 1.81” × 1.14”

Main crystal size: 2.6 × 2.3 cm = 1.02” × 0.91”

Wulfenite with Calcite

MD39AA9: Very aerial growths, on matrix, of very sharp tabular Wulfenite crystals. They are translucent, bright and have a clear Brown color. An excellent classic from Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.7 × 4.6 × 3.7 cm = 1.85” × 1.81” × 1.46”

Main crystal size: 1.3 × 1.3 cm = 0.51” × 0.51”

Former collection Caroline Martaud (Wulfenites)

Wulfenite with Calcite-Dolomite

MH97AA9: Very aerial aggregate of very sharp, translucent and bright Wulfenite crystals. They have a yellowish-brown color and are on a matrix with small Calcite-Dolomite crystals.
The specimen has been published in the magazine ‘Mineral Up’ in the special "Wulfenites of the Caroline Martaud Collection" on page 26, number 2013/1
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.2 × 2.5 × 4.8 cm = 2.83” × 0.98” × 1.89”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Former collection Caroline Martaud (Wulfenites)

Wulfenite with Tennantite

VJ67Y4: Sharp Wulfenite crystals, between tabular and laminar, with very well defined faces and edges, with a grayish brown color and implanted on a matrix with well developed tetrahedral Tennantite crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (±1970)

Specimen size: 8.3 × 6.2 × 5.5 cm = 3.27” × 2.44” × 2.17”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

Former collection of A. Mayor

Tsumcorite

ED37AC5: Yellow botryoidal Tsumcorite aggregates on matrix, with Quartz and Mimetite. The sample, from its type locality, is from the Claus Hedegaard collection whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 3.8 × 2.6 × 1.9 cm = 1.50” × 1.02” × 0.75”

Type locality

Former collection of Claus Hedegaard

Front

Side

Olivenite

MB79D6: This specimen has crystals of Olivenite all over it, but in the center there is pocket with thick, brilliant, and intense beautiful green crystals. More beautiful that one can really expect for an infrequent mineral
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.2 × 3.4 × 2.8 cm = 2.05” × 1.34” × 1.10”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”

Olivenite with Azurite, Malachite and Duftite

TP63M0: Excellent color Olivenite crystal aggregate with a good size for the species and the locality. Accompanied by Malachite pseudomorphous after Azurite, also Azurite crystals with an excellent transparency and definition and green aggregates and concretions of Duftite. The Duftite has been analyzed and we will send a copy of the analysis to the buyer. A high quality specimen from a classic locality.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.7 × 5.3 × 3.2 cm = 2.24” × 2.09” × 1.26”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

Willemite

TT99N6: Group of nearly transparent bright crystals with excellent color and very well defined terminations. A magnificent representative of the species.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 3.3 × 2.5 × 3.5 cm = 1.30” × 0.98” × 1.38”

Intense fluorescence short UV & fluorescent long UV

Adamite (variety cuprian)

TC90TA: Group of Adamite crystals (copper-bearing variety) on a limonite matrix, very sharp, translucent, with bright luster and an intense green color. The specimen will be shipped in its original Perky box from the Robert J. Noble collection, which also contains the label.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.5 × 1.4 × 1.1 cm = 0.98” × 0.55” × 0.43”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

Former collection of Bob Noble

Adamite (variety cuprian) with Olivenite

ME74V2: Crystals of Adamite, in groups and isolated crystals, with very well defined faces and edges, a considerable size for a most usual kind of sample from Tsumeb, with good clear green color typical of the cuprian variety. They are on microcrystalline Olivenite and on matrix. These cuprian Adamites are specially appreciated due their rarity at this locality. A really good “oldie”.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6.6 × 5 × 3.6 cm = 2.60” × 1.97” × 1.42”

Main crystal size: 0.8 × 0.5 cm = 0.31” × 0.20”

Adamite (variety cuprian)

Fluorescent light (daylight)

TR66AI3: Druse of polycrystalline Adamite growths on a limonite matrix. The crystals are very sharp and have slightly curved faces. They have an intense deep green color. An excellent classic from Tsumeb, very scarce, and more so with such great quality.
The simple is from the Chris Amo collection whose label we’ll send with another from the Warren Taylor collection (num. 2465P) where the sample was previously.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 7.2 × 5.4 × 4.6 cm = 2.83” × 2.13” × 1.81”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

Leiteite

Front	Rear
Side	Side

TQ68T2: Leafy aggregate of considerable size for the species of this very rare zinc arsenate, whose occurrence is limited to only two localities, Tsumeb being the most significant due to the quality of the samples obtained.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.7 × 0.4 × 0.3 cm = 1.85” × 0.16” × 0.12”

Copper and Calcite

TZ6V1: Arborescent growth, on matrix, of very acute crystals of Copper. In spite of their fragile appearance, the aggregate is firmly attached to the matrix.
The sample is from the Desmond Sacco collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 2.4 × 2 × 1.7 cm = 0.94” × 0.79” × 0.67”

With handwritten label from the Desmond Sacco Collection

Copper with Cuprite, Calcite and Malachite

Front

Rear

Copper with Cuprite, Calcite and Malachite.

TJ87AF6: Arborescent growth of native Copper crystals on matrix, with small octahedral Cuprite crystals which are very bright and intensely red. The Copper has coatings of Calcite and Malachite.
The sample is from the Vallecillo collection, Madrid.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 9.5 × 6.3 × 3.8 cm = 3.74” × 2.48” × 1.50”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

Former collection of José Luis Vallecillo

Copper

EA27: Excellent Copper complex crystal form, floater, complete in all sides, with a little bit of iridescent color giving more esthetics (and color stability) to the specimen.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (08-09/82)

Specimen size: 11 × 7.7 × 1.4 cm = 4.33” × 3.03” × 0.55”

Cuprite with Calcite

Front

Side

EL89AM1: Group of very sharp Cuprite crystals, octahedral with small cube faces. They are translucent, very lustrous and have an intense and vivid red color. On matrix, and partially covered by groups of pale yellow Calcite crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 4.7 × 3.1 × 4.2 cm = 1.85” × 1.22” × 1.65”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”

Calcite fluorescent short UV

Cuprite with Dolomite (variety cuprian) and Adamite (variety cuprian)

TP92AH2: Cubo-octahedral Cuprite crystals that are translucent, very bright, have a very intense and deep red color and are partially coated by aggregates of very well defined cuprian Dolomite crystals and minor cuprian Adamite crystals.
The sample is from the Chris Amo collection (Williamsville, N.Y.), and it previously was in the Willy Israel collection, in Belgium. We’ll send both labels with the sample.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.6 × 4 × 3.5 cm = 2.20” × 1.57” × 1.38”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

Cuprite

TF99AH6: Druse of very sharp cubo-octahedral crystals that are bright, have very intense reddish reflections and are partially coated by small Cerussite crystals.
The sample is from the Chris Amo collection, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 5.8 × 5.5 × 2.9 cm = 2.28” × 2.17” × 1.14”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

Cuprite with Dolomite

TA37L3: An extraordinary classic Tsumeb specimen. Very well defined Cuprite crystals, formed by dominant octahedron and cube faces, on a Cuprite matrix covered by a layer of small Dolomite crystals. Cuprite presents an excellent luster and an uncommon transparency for the species, when light reflects on the crystals.
The sample is accompanied by old labels from an unidentified German collection, which we will send to the buyer of this gorgeous specimen.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (±1969)

Specimen size: 12 × 7.2 × 4.3 cm = 4.72” × 2.83” × 1.69”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”

Dolomite fluorescent short UV

Front

Tennantite with Dolomite and Quartz

Front

Side

MM49AJ0: Group of Tennantite crystals, one of them clearly dominant, with very well defined faces and edges, with the forms of a tetrahedron and dodecahedron, and with small, white, Dolomite
A classic from Tsumeb that was in the Enrique Moës collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 6.4 × 5.1 × 3.9 cm = 2.52” × 2.01” × 1.54”

Main crystal size: 4.4 × 3.3 cm = 1.73” × 1.30”

Tennantite with Wulfenite and Quartz

EP7AI7: Group of tetrahedral Tennantite crystals that are beveled by other minor forms, with very well defined faces and edges and partially coated by small white Quartz crystals and groups of small Wulfenite crystals that are very rich in forms and with a dark reddish–brown color.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 8.4 × 6.5 × 3.3 cm = 3.31” × 2.56” × 1.30”

Main crystal size: 2.7 × 1.7 cm = 1.06” × 0.67”

Tennantite with Smithsonite and Quartz

VB48Y9: Black tetrahedral Tennantite crystals with very well defined faces and edges. They are on matrix, with Quartz crystals and small, very bright, Smithsonite crystals that partially coat both Quartz and Tennantite.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (±1971)

Specimen size: 10.3 × 6.8 × 6.2 cm = 4.06” × 2.68” × 2.44”

Main crystal size: 1.5 × 1.2 cm = 0.59” × 0.47”

Former collection of A. Mayor

Sphalerite after Enargite, coated by Smithsonite and with minor Galena and Cuprite

MLE72CD4: A morphological, structural and genetic complexity. The original very aerial and stalagmitic Enargite crystals have been entirely pseudomorphed by Sphalerite crystals that in turn have been partially covered by white Smithsonite crystals, as well as small disseminations of Galena and Cuprite. How capricious mineral paragenesis can be!
Considering its complexity, the specimen has been analyzed, and the analytical report will be sent to the buyer.
This specimen comes from the collection of Michel Perraudin who, as can be seen in the images, had it wrongly identified, which is no surprise as it is a piece that begged for a very precise analysis, since its visual appearance did not indicate what it finally turned out to be.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia

Specimen size: 11.1 × 5.6 × 2.7 cm = 4.37” × 2.20” × 1.06”

Main crystal size: 10.4 × 1.7 cm = 4.09” × 0.67”

Analyzed

Former collection of Michel Perraudin